crystal clear!
thanks again,
guido
Il giorno mar 23 giu 2020 alle ore 23:51 Tim Chase <[email protected]>
ha scritto:
> On 2020-06-23 14:02, Guido Milanese wrote:
> >> :%s/<\([^>]*\)>/\=get({'TODAY':strftime('%c'), 'AUTHOR':$USER},
> >> submatch(1), submatch(1))
> >
> > if you do not mind: why
> >
> > submatch(1), submatch(1)
> >
> > and not
> >
> > submatch(1), submatch(2)
>
> The \(...\) captures a sub-group, and I only capture one of them, so
> there's only submatch(0) (the whole thing including the "<" and ">")
> and submatch(1) (the term inside them). If you want to keep the
> brackets, the second one could be "submatch(0)" instead of
> "submatch(1)".
>
> It does a get() on that static dictionary/mapping, looking up the
> term that was in those angle-brackets (the first submatch(1)). If it
> finds the term, it returns the corresponding replacement. If it
> doesn't find the term in the dictionary/mapping, it returns the
> default (the same thing we're looking up, that second submatch(1), or
> as mentioned above, you could keep the angle-brackets by returning the
> whole original text with submatch(0)).
>
> Hope that helps,
>
> -tim
>
>
>
--
Guido Milanese - Professor of Classics - Docteur H.C. Paris ICP
Universita' Cattolica d.S.C., Milano - Brescia
http://docenti.unicatt.it/ita/guido_fabrizio_milanese
<http://www.arsantiqua.org>
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